{Osprey CCM} DTC Troubleshooting Data Version: 2.0 Date: 28-Jul-17 Author: ERC Page: 79 of 244 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. B1F46-13:- Fresh Air/RECIRC Feedback Power Supply - Circuit Open;: ISO Code B1F46- 13 Customer Symptom System is less responsive to user control and environmental conditions Fault Effects (On Vehicle) Motor feedback voltage will be affected and motor will not move to desired set point Lamp Status (If Any) NA Fault Detection Condition Fresh/RECIRC Door Control Motor Potentiometer Supply Line - open Normal Operating Condition With the Fresh/RECIRC door Potentiometer supply line connected to the harness and with Ignition ON, check the voltage between blue connector pin no 1and ground. The voltage should be 5V Probable Trouble Area 1) Sensor supply wiring is open circuited 2) Sensor supply wiring is short circuited to ground Healing Condition NA Component Details: The recirculation/fresh air selector door actuator motor controls the position of the door which allows fresh air or recirculation air, or a combination of the two, into the vehicle. The motor is mounted on the recirculation /fresh air duct. Preliminary Checks: Switch On the IGN & perform the following check. 1) Connect the Diagnostics tool & check the DTC fault code 2) Read ECU parameter value Target Position of Air-Inlet Door Flap and AI Door flap Position (Internal Value) for actual and target position of Actuator
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